Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2011-03-08
2011-03-08
Nguyen, Phu (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000, C345S424000, C345S442000, C345S624000
Reexamination Certificate
active
07903112
ABSTRACT:
A drawing processing apparatus for performing tessellation processing, comprising a pixel shader and a texture unit. An internal division operation part of the pixel shader issues texture load instructions to the texture unit, specifying parametric coordinate values of a patch of a parametric surface, and thereby acquires internal division factors interpolated based on the parametric coordinate values from the texture unit. The internal division operation part issues texture load instructions to the texture unit further, specifying the internal division factors acquired from the texture unit as new interpolation factors, and thereby acquires control points internally divided based on the internal division factors in advance from the texture unit. Based on the internal division factors corresponding to the parametric coordinate values, the internal division operation part performs recursive internal division operations on the control points acquired from the texture unit, thereby determining a point on the parametric surface corresponding to the parametric coordinate values.
REFERENCES:
patent: 5253336 (1993-10-01), Yamada
patent: 5278948 (1994-01-01), Luken, Jr.
patent: 5283860 (1994-02-01), Einkauf et al.
patent: 5317682 (1994-05-01), Luken, Jr.
patent: 6111588 (2000-08-01), Newell
patent: 6137492 (2000-10-01), Hoppe
patent: 6600485 (2003-07-01), Yoshida et al.
patent: 6707452 (2004-03-01), Veach
patent: 6784884 (2004-08-01), Hsieh
patent: 6867774 (2005-03-01), Halmshaw et al.
patent: 7012608 (2006-03-01), Fujisaki
patent: 7203634 (2007-04-01), Jayaram et al.
patent: 7245299 (2007-07-01), Sfarti
patent: 7277096 (2007-10-01), Veach
patent: 7362328 (2008-04-01), Fenney et al.
patent: 7386429 (2008-06-01), Fujisaki
patent: 3-48375 (1991-03-01), None
patent: 2001-331812 (2001-11-01), None
Katten Muchin & Rosenman LLP
Nguyen Phu
Sony Computer Entertainment Inc.
LandOfFree
Drawing processing apparatus, texture processing apparatus,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drawing processing apparatus, texture processing apparatus,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drawing processing apparatus, texture processing apparatus,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2665367